Crossing over is important for ________.

A. increasing genetic variability
B. limiting genetic recombination
C. preventing mutations
D. maintaining chromosome structure


Answer: A

Anatomy & Physiology

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Another term for pulmonary ventilation is:

a. internal respiration b. breathing c. external respiration d. both B and C above

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At any given time, more than half the total blood volume is found in

A. arteries and arterioles. B. venules and veins. C. capillaries. D. arterioles and venules.

Anatomy & Physiology

Which cytoskeletal structure is involved in the movement of chromosomes during cell division?

A. Microtubules B. Actin filaments C. Microvilli D. Intermediate filaments

Anatomy & Physiology

Proteins that are embedded within, and extend across, the phospholipid bilayer are called ________ proteins.

A. cytoskeleton B. integral C. catalytic D. peripheral

Anatomy & Physiology